DEA
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A Debreceni Egyetem elektronikus Archívuma (DEA) a Debreceni Egyetemen születő dokumentumok digitális tárhelye. Az archívumban különböző gyűjteményekben tároljuk a tudományos publikációkat, hallgatói dolgozatokat, oktatási anyagokat, média tartalmakat és digitalizált dokumentumokat. Az Open Access elvein felépülő repozitóriumban a hozzáférés több szinten valósul meg: a dokumentumok egy része bárhol szabadon hozzáférhető, míg mások kizárólag a Debreceni Egyetem számítógépein vagy zárt hálózaton keresztül érhetők el.
Kiemelt kategóriák a DEA-ban
Digitális Könyvtár
A DEENK által digitalizált kulturális örökségnek és egyetemtörténeti dokumentumoknak, a Debreceni Egyetemi Kiadó gyűjteményeinek, az egyetemi és helyi vonatkozású folyóiratoknak digitális archívuma.
Hallgatói dolgozatok
A Debreceni Egyetem karain végzett hallgatók szakdolgozatainak, diplomamunkáinak gyűjteménye. A tételek a kari határozatok értelmében Egyetemi IP-ről megtekinthetők.
PhD dolgozatok
A Debreceni Egyetem doktorjelöltjei által feltöltött doktori tézisfüzetek és disszertációk gyűjteménye, amelyeket a DEENK a doktori iskolákra vonatkozó országos és helyi hatályos rendelkezések szerint nyílt hozzáféréssel tesz közzé.
Publikációk
A Debreceni Egyetem kutatóinak közleményei, amelyek alapvetően zárt hozzáférésű dokumentumok, de a DEENK a kiadói és a szerzői jogok betartásával a tételeket szabadon hozzáférhetővé teszi.
Legfrissebbek betöltések
Effects of green technology adaptation and green innovation on circular economy performance of mining sector in Mongolia
(2025) ERDENEBAYAR, CHULUUNBAATAR; Oláh , Judit; Chuluunbaatar , Erdenebayar; Ihrig Károly gazdálkodás- és szervezéstudományok doktori iskola; Gazdaságtudományi Kar
The transition from linear production models to a circular economy has become a strategic priority for resource-intensive industries, particularly in emerging economies. This study investigates the effects of green technology adaptation on circular economy performance in the mining sector of Mongolia, with a specific focus on the mediating role of green innovation. Drawing on the resource-based view, a conceptual model is developed in which green technology adaptation functions as the exogenous construct, circular economy performance as the endogenous outcome, and green innovation as a mediating mechanism. Using a quantitative, cross-sectional research design, primary data were collected from managers of 30 major mining organizations in Mongolia. The hypotheses were tested using partial least squares structural equation modeling. The results indicate that green technology adaptation has a significant positive effect on circular economy performance and green innovation. Green innovation also exhibits a significant positive relationship with circular economy performance and partially mediates the relationship between green technology adaptation and circular outcomes. These findings highlight that the effectiveness of green technologies is substantially enhanced when supported by innovation-oriented organizational practices. The study contributes to the literature by providing empirical evidence from a previously underexplored national and sectoral context and offers practical implications for policymakers and industry leaders seeking to improve sustainability performance in the mining sector through integrated technological and innovative strategies.
The effects of technology and institutions on productivity growth, a sectoral approach, in the case of OECD countries
(2024) Zeynvand Lorestani, Vahid; Erdey, László; Ihrig Károly gazdálkodás- és szervezéstudományok doktori iskola; Gazdaságtudományi Kar
This study examines how technology and institutional quality shape productivity growth across OECD countries using a sectoral approach over the period 2007–2017. Productivity is proxied by GDP per person employed, while technology is captured through ICT-related indicators including internet access in schools, availability of the latest technologies, and foreign direct investment (FDI) and technology transfer. Institutional quality is represented by property rights. The analysis integrates industry heterogeneity by applying three complementary taxonomies: (i) skill intensity (high-skilled to low-skilled sectors), (ii) innovation taxonomy (nine industry groups), and (iii) R&D intensity (high to low technology manufacturing). Empirically, the study employs dynamic panel estimation using two-step GMM to address endogeneity, simultaneity, and dynamic persistence in productivity. Results show that ICT and institutions are associated with productivity growth in a differentiated manner across sectors. Internet access in schools is generally positively related to productivity in skill-based industries and is mostly positive across innovation groups, while its effects are weaker and often insignificant across R&D intensity groups. The availability of the latest technologies is partially positive and sometimes significant in skill-intensive sectors but tends to be negative or mixed in innovation and R&D intensity taxonomies. FDI and technology transfer display heterogeneous and mostly weak effects across taxonomies. Property rights show the strongest and most robust positive association with productivity growth, particularly in the skill taxonomy, while remaining generally positive but less consistent in the other classifications. Overall, the findings indicate that productivity gains depend on both technology diffusion and institutional foundations, and their impacts vary substantially by sectoral structure, highlighting the importance of targeted policy design.
The Role of Video Games in Second Language Acquisition and Attitudes Towards Video Game-Based Language Learning
Eperjesi, Dániel Sándor; Balogh, Erzsébet; DE--Bölcsészettudományi Kar
This thesis examines the role of video games in secondary langauge acquisition and the general attitudes towards video game-based language learning. It builds on the data collected by a questionairre that explored how participants percived that video games have helped them in language learning, focusing on English skills, such as vocabulary, reading, and speaking. The results show that reading, listening, and vocabulary improved the most with the help of several features of video games. Participants also expressed a generally positive attitude towards video game-based language learning and highllited several factors which proves that video games can be useful language learning tools. Overall, this study showed that video games can be helpful supplementary tools in English learning.
Haunting Legacies: Time, Space, and Voice in the Postcolonial Gothic of Toni Morrison’s Beloved and Jean Rhys’s Wide Sargasso Sea
Tóth, Edina; Pataki, Éva; DE--Bölcsészettudományi Kar
Unresolved histories of slavery and empire do not simply fade away but linger as suffocating atmospheres that actively shape the present in Beloved and Wide Sargasso Sea. By transforming the Gothic ghost into a social fact, these narratives reveal how trauma permeates domestic spaces like 124 Bluestone Road and Coulibri to turn them into containers of grief rather than sanctuaries. Time itself fractures under this pressure and traps characters in non-linear loops where the past constantly intrudes upon the now through rememory and repetition. This structural violence extends to language because the power to name determines who is granted agency and who is erased. Ultimately, the divergence in outcomes for Sethe and Antoinette demonstrates that isolation cements the destructive cycle of acting out while communal witnessing offers a fragile possibility for working through the weight of history.
The Shattered American Dream
Juhász , Gréta; Mathey, Éva; DE--Bölcsészettudományi Kar
This research positions F. Scott Fitzgerald’s The Great Gatsby as an insightful and truthful portrayal of the complexities of 1920s America, looking beneath the Jazz Age’s glittering exterior. The study shows how Fitzgerald’s novel skillfully blends historical events like the consequences of Prohibition, the distortion of the American Dream, and the clash between Old and New Money with enduring themes of unreachable love and faded dreams. By examining factors such as changing social values, the rise of the Flapper, and the influence of new technology, the research demonstrates that the novel captures the era’s ambitions and contradictions with striking clarity. All in all, Fitzgerald created a book that is both a cultural critique and a historical document, sharply exposing the materialism and inequality of the time. The Great Gatsby remains relevant because it explores the futility of recapturing the past and continues to spark conversations about what it means to live ethically in America.
Poetics of Theatre Space in Two Recent London Productions of Shakespeare's Plays
Ignácz, Orsolya; Oroszné Gula , Marianna; DE--Bölcsészettudományi Kar
This thesis examines the use of theatre space in Shakespeare’s Coriolanus (2014) directed by Josie Rourke’s and Nicholas Hytner’s A Midsummer Night’s Dream (2019). Both adaptations rely heavily on the poetic potential of space, one by highlighting isolation and entrapment, the other by offering an escape into a vast, open world. Drawing on Gaston Bachelard’s concepts from The Poetics of Space it analyses how spatial confinement shapes the tragedy of Coriolanus, while openness and expansion define the world of A Midsummer Night’s Dream.
The Psychological and Societal Impact of Colonisation in Joseph Conrad’s Heart of Darkness and George Orwell’s “Shooting an Elephant”
Shakeeb, Salek; Krisztan, Daniella; DE--Bölcsészettudományi Kar
My thesis examines how colonialism psychologically, culturally, and morally damages both colonisers and colonised. Through Conrad’s Heart of Darkness and Orwell’s “Shooting an Elephant,” it argues that colonial power destroys individuality, suppresses cultural identity, imposes racial hierarchies, and generates moral corruption, revealing colonialism’s enduring destructive impact on human life.
Dissociative Identity Disorder as a Coping and Self-defence Mechanism in Primal Fear and The Crowded Room
Csenge, Vajas; Eszter, Ureczky; DE--Bölcsészettudományi Kar
My approach in this thesis is to examine dissociative identity disorder via two protagonists, Aaron Stampler in Primal Fear (1996) and Danny Sullivan in The Crowded Room (2023). I argue that they can be interpreted as individuals who use their distressed condition of DID for survival, either as a coping mechanism or defence tool for handling their lives and themselves, which an act of ruthless mistreatment/violation has ruined for life. Apart from the adverse stereotypical, mainstream and popular cultural renderings, these two portrayals connote a more humanising perspective and understanding of this disease by acknowledging and paying attention to the nature of its simple existence. Chapter 1 introduces basic information about dissociative identity disorder, its relevant defining terms, diagnosis, its psychopathology, medical and judicial aspects, and misrepresentative examples. Then, Chapter 2’s first part is a comparison between Aaron’s suppressed and Danny’s repressed and unacknowledged sexual abuse, dissociation differences and their own type of self-protective methods. Chapter 3’s first main section concerns “the crowded room essence” of Danny’s mind, memory and cognitive functioning, alter variations and personal trials. Lastly, Chapter 3’s sub-section analyses alters’ assignations as “saviour” figures and “guardian angels”, defences and agency claiming.
From Moscow to Main: The Kitchen Debate and the Cold War Media's Role in Shaping Public Opinion
Munkácsi, Márta; Balogh, Máté Gergely; DE--Bölcsészettudományi Kar
This thesis discusses a defining Cold War moment, the 1959 Kitchen Debate, which was part of a cultural exchange program between the United States and the Soviet Union. It was an ideological clash between capitalism and communism amplified by the media. Based on Richard Nixon and Nikita Khrushchev’s televised confrontation, my study analyzes how media narratives weaponized cultural and technological achievements to shape public perception. American outlets promoted consumerism and individual freedom, while Soviet media downplayed materialism, emphasizing collectivism and industrial progress through censorship and propaganda. By examining textual, visual, and archival materials -from Life Magazine to Pravda- my thesis reveals how media transformed the debate into a global spectacle.
Perceptions and preferences of British and American English among Hungarian university students
Juhász, György; Balogh, Erzsébet; DE--Bölcsészettudományi Kar
This paper investigates the preferences of Hungarian university students regarding the contrast between British and American English. The data were collected in short discussions with each student individually; none of them were informed about the topic of the research. The results indicate that while the distribution of students and their preferred variety is mixed, most of the students believe that the relevance of these differences will become less important in the near future.
Central Asian Migration to the United States Through Mexico
Cholponkulova, Aidana; Mathey , Éva; DE--Bölcsészettudományi Kar
This thesis explores recent patterns of migration from Central Asia to the United States through Latin America, focusing on developments between 2021 and 2024. In particular, it examines how political and economic factors, together with the circulation of information, shape Central Asian migration to the United States via Mexico. It further analyzes how migrants choose routes through Latin America based on digital communication, journalistic narratives, and the role of smuggling networks. Finally, the study considers how asylum procedures and community support influence migrants’ experiences after arrival in the United States.
Representation of Vietnam War Veterans with Post-Traumatic Stress Disorder in Three Films
Sebők, Dávid; Győri, Zsolt; DE--Bölcsészettudományi Kar
The dissertation describes the course of PTSD based on three Vietnam war films. It highlights the problems that occur in traumatised individuals and shows how the symptoms of PTSD are represented in the three films. The first film is Taxi Driver (1976). The second is Born on the Fourth of July (1989). The third is Jacob's Ladder (1990).
Critical Carey: Reactions to Social Change in Two Short Stories by Peter Carey
Bence, Simon; Espák, Gabriella; DE--Bölcsészettudományi Kar
The thesis talks about the inevitability of change and change within society. It provides insight into the changes Australia experienced through its connection with America. The thesis then analyses two short stories by Peter Carey "The Fat Man in History" and "The Chance." The analysis mainly delves into the notions of revolution, required change, and societal expectations through Carey's work.
The Application of Large Language Models in Vocabulary Building
Tóth, András Ágoston; Tóth, Ágoston; DE--Bölcsészettudományi Kar
The thesis explores how Large Language Models (LLMs), specifically OpenAI’s ChatGPT, can be utilized as a tool to support vocabulary building in language learning. After a short introduction to how Large Language Models work, this task-centric research examines the potential of ChatGPT for generating different types of activities for practicing new vocabulary, and also for creating dictionary entries. It investigates various LLM usage scenarios, including generating texts related to specific topics, CEFR levels, genres and regional variations in English. The findings reveal that ChatGPT can generate relevant and grammatically correct content, but human supervision is needed to ensure accuracy and alignment with specific educational goals. Finally, the thesis concludes that LLMs can serve as supplementary tools in vocabulary teaching, they are useful for offering personalized and dynamic content, but their integration requires careful evaluation and teacher oversight.
Conflicting Dualities and Struggles of Masculine Identity in Pat Barker’s Regeneration Trilogy
Sisa, Georgina; Horváth, Imre Olivér; DE--Bölcsészettudományi Kar
Pat Barker’s Regeneration trilogy takes place during the last years of the First World War and focuses on the work of the fictionalized Dr. W. H. R. Rivers who treats soldiers at Craiglockhart War Hospital. The issue of shell shock and the protest of the war on moral grounds call into question established notions of masculinity and cause individual crises of values and identity. I explore the contemporary expectations of masculine behavior and contrast them with the experiences of the novels’ characters, analyzing the various roles they take on. The prominent motif of the sacrifice is addressed in my thesis as well, along with the dehumanization soldiers experience in the face of the war’s destruction. I focus on Rivers as a character and show his journey of gaining a close identification with the shell-shocked soldier, while simultaneously recognizing his professional influence and the need for a large-scale shift of perspective related to society’s expectations of masculinity. Such codes are quite pervasive and, as the novels suggest, change may only be brought about through the consideration of experiences across memory, generations, and cultures.
The Representation of Female Mental Illness in Susanna Kaysen's Girl, Interrupted and the Film Adaptation
Sitku, Liliána; Ureczky, Eszter; DE--Bölcsészettudományi Kar
This thesis attempts to analyse the various ways in which mental disorders are depicted, what importance they carry in communities and the consequences of overcoming such struggles. These points are reflected in Susanna Kaysen's Girl interrupted, a formative piece of literature in the studies of mental illness. It offers a side-by-side comparison of the book and its film adaptation. It also focuses on the means in which suicide is painted, how females can uplift each other and the aftermath of leaving a mental institution. Hence, how similarly or differently these are shown in the original or the film version. Moreover, it connects and refers back to influential works by other major figures such as Michael Foucault, Émile Durkheim or George Rosen.
Shifting Power Dynamics and Transgressive Ethics: The Representation of Human-Android Relations in Contemporary Science Fiction Literature and Film
Sebők, Jázmin Florentina; Csató, Péter; DE--Bölcsészettudományi Kar
Through the thesis, I am analyzing three films and a short story. These chosen narratives depict humanity crucially intertwined with robotics. In the paper, I will demonstrate how robots are prone to transgress human boundaries and I will explain how they are present in the narratives. Through ethics, I will examine how the robots overstep the rules made by humans, and I will use several phylosophical and ethical notion to prove this. The thesis also uses Isaac Asimov's notion of the Three Laws of Robotics as a basis.
Users' Perceptions of Language Learning Apps: A Case Study
Polyák, Nikolett; Csépes, Ildikó; DE--Bölcsészettudományi Kar
As technology has developed, the need for accessible and effective language learning tools has grown. This thesis explores users' perception of four language learning apps such as Duolingo, Memrise, Drops and Babbel, and how these apps help with a new language. It includes descritpions of the apps and explains some of the main methods they use, like Spaced Repetition System and gamification. Based on our research, the study analyses users' experiences, pointing out strengths and weaknesses.
Antifeminism and Misogyny in Grand Theft Auto Games
Szabó, Lili Petra; Horváth, Imre Olivér; DE--Bölcsészettudományi Kar
This thesis explores how Grand Theft Auto games, particularly GTA V, embed misogyny and antifeminism into their narratives, gameplay mechanics, and broader cultural influence. It argues that these themes are not only background elements, but central components of the player experience. These elements shape how gender roles are perceived both within and beyond the game. By examining the portrayal of female characters, workplace culture at Rockstar Games, and the influence of movements like Gamergate, the thesis shows how the series consistently reinforces harmful stereotypes.
Roles in Play: Gender-Role Theory in the Tabletop Roleplaying Scene
Győri-Bundi, Bence; Mózes, Dorottya; DE--Bölcsészettudományi Kar
Thesis examining how Tabletop Roleplaying Games (TTRPGs) can help in evaluating roles played in society, with special attention to gender. Roles of play involves a research based on a mix of academic sources and deep interviews conducted with roleplaying game fans, as well as members of the LGBTQ+ community.